NASA - National Aeronautics and Space Administration (NASA): Recent submissions

Now showing items 281-300 of 3613

    • NACA-TN-2819 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1952
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: An investigation has been made in the Langley stability tunnel to determine the effect of high-lift devices on the low-speed static-lateral-stability derivatives of a 45x sweptback wing of aspect ration 4.0 and taper ratio ...

    • NASA-LLIS-0569 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1997
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Problems occurred during Mars Pathfinder spacecraft integration and test due to out-of-date or incomplete interface documentation. The problem of communicating design details and changes ...
      Subject(s) : Electrical Interface Control Drawing (EICD) , Mechanical Interface Control Drawing (MICD) ,

    • NASA-LLIS-1367 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2002
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Background:
      In October 2001 the Payload Safety Review Panel (PSRP) conducted the phase III flight safety review for the Microgravity Science Glovebox (MSG) payload. ...
      Subject(s) : Configuration Management , Emergency Preparedness , Flight Equipment , Flight Operations , Ground Equipment , Ground Operations , Hardware , Independent Verification and Validation , Industrial Operations , Launch Process , Policy & Planning , Risk Management/Assessment , Safety & Mission Assurance , Test & Verification ,

    • NASA-LLIS-3177 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2010
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      This lesson learned addresses the development and evolution of a test technique for revalidating the Space Shuttle Orbiter Main Propulsion System (MPS) during ground turnaround operations ...
      Subject(s) : Ground processing and manifesting ,

    • NASA-RP-1060 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1980
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Methods for estimating the approximate size, weight, and power of aircraft intended to meet specified performance requirements are presented for both jet-powered and propeller-driven aircraft. The methods are simple and ...

    • NACA-TN-2340 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1951
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Various methods of reducing to stability parameter form the response to sinusoidal and transient disturbances are discussed, using the simplified longitudinal motion of an idealized airplane as an illustrative example. It ...

    • NASA-LLIS-4059 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2011
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Large quick disconnects (QDs) in ground support equipment (GSE) can be very difficult to successfully mate to air half couplings (AHCs) because they have bulky, heavy hoses that must be rotated ...
      Subject(s) : Advanced planning of safety systems , Configuration Change Control , Engineering design and project processes and standards , Ground processing and manifesting , Ground support systems , Human Factors , Human factors planning , Lander Systems , Launch support systems , Launch Systems , Orbiting Vehicles , Quality ,

    • NASA NPR 8735.1 REV B 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2007
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: PURPOSE
      NASA Policy Directive (NPD) 8700.1, NASA Policy for Safety and Mission Success, requires NASA managers to control nonconforming products and to perform corrective and preventative actions. ...

    • NASA-LLIS-0784 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      Supply power to electronic assemblies during vibration, acoustics, and pyroshock and monitor the electrical functions continuously while the excitation is applied.

    • NASA-LLIS-1161 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2001
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Lack of an Adequate Crew Escape System for the Orbiter for Launch Through Insertion
      Subject(s) : Aerospace Safety Advisory Panel , Configuration Management , Energetic Materials - Explosive/Propellant/Pyrotechnic , Financial Management , Flight Equipment , Policy & Planning , Risk Management/Assessment , Spacecraft ,

    • NASA-LLIS-6142 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2012
      Organization : NASA - National Aeronautics and Space Administration (NASA)

    • NASA-LLIS-0777 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      Test satellites for the ability to survive the effects of electrostatic discharges (ESDs) caused by a space charging environment. Such environments include Earth equatorial orbits above 8000 ...

    • NACA-TN-1517 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1948
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      An extensive investigation of control-surface characteristics is being conducted by the Langley Laboratory of the National Advisory Committee for Aeronautics that includes several types of flaps of various ...
      Subject(s) : AIRFOILS , CARRIED , CHARACTERISTICS , CONTROL , EFFECT , FLAPS , GAP , GAPS , HINGE , LMAL , MOMENTS , NACA , SEALED , SURFACES , TESTS , TUNNEL , WIND , WING , WORK ,

    • NASA-LLIS-1609 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2005
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Following the recommendations from the X43A Flight 1 MIB, the Pegasus actuator system was redesigned to accommodate the need for greater hinge torque. The analog-based legacy actuator system ...
      Subject(s) : Accident Investigation , Flight Equipment , Hardware , Safety & Mission Assurance , Test & Verification ,

    • NACA-TR-820 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1945
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: It was realized as early as 1909 that a propeller in yaw develops a side force like that of a fin. In 1917, R. G. Harris expressed this force in terms of the torque coefficient for the unyawed propeller. Of several attempts ...
      Subject(s) : AERODYNAMIC , AIRCRAFT , ASPECT , COMPRESSIBILITY , CONTRAROTATING , EFFECTS , FORCES , INCLINATION , MOMENTS , PITCH , PROPELLERS , RATIO , STABILITY , YAW ,

    • NASA-LLIS-0919 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      The Solar Radiation and Climate Experiment (SORCE) Project is a PI Mode cost capped mission. During the formation of the SORCE Mission (which is a combination of the ...
      Subject(s) : Financial Management , Policy & Planning , Procurement , Small Business & Industrial Relations , Spacecraft ,

    • NACA-TN-3797 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1956
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Lift and pitching-moment characteristics of an NACA 0006 airfoil are presented for various deflections of a 0.15-chord leading-edge flap and a 0.30-chord plain trailing-edge flap. Pressure-distribution data are presented ...
      Subject(s) : EDGE , FLAPS , LEADING , LOADS , PLAIN , SECTIONS , STEADY , WING , WINGS ,

    • NASA-TM-X-3302 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1975
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: A short annular diffuser equipped with wall bleed (suction)capability was evaluated at inlet Mach numbers of 0.186 to 0.5. The diffuser had an area ratio of 4.0 and a length-to-inlet height ratio of 1.6. Test results show ...
      Subject(s) : AIR FLOW , BOUNDARY LAYER CONTROL , COMPRESSORS , DIFFUSERS , GAS TURBINE ENGINES , INLET FLOW , JET FLOW , MACH NUMBER , PERFORMANCE TESTS , SUCTION , VELOCITY DISTRIBUTION , WALL PRESSURE ,

    • NACA-TR-1130 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1953
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The damping in yaw and the directional stability of a model freely oscillating in yaw were measured tail-off and tail-on and compared with the values obtained by theoretical consideration of the unsteady lift associated ...
      Subject(s) : AIRCRAFT , ASPECT , ASSEMBLIES , BODY , COMPARISON , COMPRESSIBILITY , CONFIGURATIONS , DAMPING , DERIVATIVES , DIRECTIONAL , DYNAMICS , EXPERIMENTATION , FLUID , FUSELAGES , LATERAL , MODELS , RATIO , STABILITY , STABILIZERS , STATIC , TAIL , TESTS , THEORIES , TUNNEL , WIND , WING , WINGS , YAW ,

    • NASA-LLIS-0516 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1994
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      On 7-2-91 a LaRC electrical technician was seriously injured while preparing to check a 22kV nitrogen filled power cable in an electrical substation. When the technician ...
      Subject(s) : Energy , Facilities , Industrial Operations , Safety & Mission Assurance ,